若行CT检查可能出现的影像改变是A．右基底节区低密度B．右基底节区高密度C．左基底节

主控/非主控电路发生同抢时，以下哪个描述正确？（）。

A.主控方占用电路

B.非主控方占用电路

C.双方都不占用电路

D.任意方占用电路

根据首字母提示补全单词。

1. My friend likes sports, so she is very a_____.

2. Mary is a f_____ girl, she always makes everyone laugh.

3. Jane isn’t very o_____, she likes to stay at home and do some reading.

4. My sister is a l_____ more outgoing than me.

5. Liu Ying talks more than Liu Li,, Liu Li is q_____ than Liu Ying.

6. The weather in China is very d_____ from that in English.

7. Lucy and Lily have opposite views and i_____. Lucy likes staying in and reading,

    but Lily likes going out and meeting people.

8. Pete is really taller this year, he eats all the time. He is h_____ than everyone on the football team.

如图所示，广口瓶内盛有少量澄清石灰水，内放一株绿色植物，瓶塞塞住，并用凡士林密封．

（1）要验证绿色植物的呼吸作用，需将装置放置在黑暗的环境中，目的是避免瓶内的植物进行______作用，对实验结果产生干扰．

（2）在黑暗中放置较长时间后，发现广口瓶中澄清的石灰水变得______，表明植物______作用释放的______与澄清石灰水发生了反应．

（3）然后，将该装置移到阳光下较长时间，取下其中一片叶进行脱色、漂洗、滴碘处理，结果发现叶片______（填“变蓝“或“不变蓝“），原因是______．

（4）该实验设计的不足之处是______．

水痘疫苗的接种目标人群是（）。

A、6月龄

B、8月龄

C、12月龄以上易感者

D、任何年龄

儿童习得第一语言的过程大体上有辨声练音期，声语过渡期，（）和语言成熟完善期。